PA/Induction loop info

[Al Johnson]

I've only found the manual for the induction loop amp:

https://www.ampetronic.com/wp-content/uploads/2021/03/UP12401-7-ILD252v2final-hb.pdf

The other bits are:

1. Audio-Technica ATW-R14 UHF Diversity Receiver - for wireless mic /
belt pack

2. Carlsbro Cobra 1400 - mixer/amp

I have a feeling the ATW-R14 may be for a frequency range that's not
supposed to be used for wireless mics any more - there was some fuss
about it some years back. Frequency was set by crystal which may be
accessible to change it. If nobody knows where the matching mic or belt
pack(s) are then it's probably not usable anyway, and could be removed.

The things on the front panel that we thought might be inputs are
actually recessed level adjusters - so they can't be accidentally
changed. The line input is where the existing jack cable is connected,
but not connected at the other end because it's too short to reach the
Cobra 1400 line out. It should work with the cable we were going to try,
but it's not ideal and may pick up hum. I can make a suitable cable if
necessary, but could do with finding out the details of the Carlsbro
line out to find out what connection is necessary. If the Carlsbro line
out is balanced then it's an off the shelf TRS to TRS screened twisted
pair. If not it's the TS to TRS screened twisted pair shown in the
manual for better hum rejection when using an unbalanced output.

Anyone use hearing aids? We'll need them to know whether the induction
loop is working.

[Bernard(Home)]

I came across these videos last time we looked:

https://www.youtube.com/watch?v=ZRIdw9wiMeQ

https://www.youtube.com/watch?v=JMb_LXQLCqA

Bernard

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